To visit the abbey is to return back in time. If you consult the official schedule of the abbey, you can visit during the services in which the friars still use ancient Gregorian chants in Latin. It is one of the most inspiring experiences of any sojourn in the Val d'Orcia.

This detail above from the abbey reveals its Romanic origins.

Sant'Antimo also gives its name to the Sant'Antimo DOC, which is Montalcino's appellation for blends that include international grape varieties. Here's the Italian Trade Commission link for information: http://www.italianmade.com/wines/DOC10272.cfm.